package com.catfairy.common.utils;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.StringRedisTemplate;

import java.util.concurrent.TimeUnit;

/**
 * @Author 猫大仙
 */
@Slf4j
public class Redis {
    private StringRedisTemplate redisTemplate;
    private static final String REDIS_SPLIT = ":";
    private static final String REDIS_DEFAULT = "default";

    public Redis(StringRedisTemplate redisTemplate) {
        this.redisTemplate = redisTemplate;
    }

    /**
     * redis get
     */
    public String get(String key) {
        try {
            return key==null?null:redisTemplate.opsForValue().get(key);
        }catch (Exception e){
            log.error("redis get error, key: {}", key);
            return null;
        }
    }
    /**
     * hasKey
     */
    public boolean hasKey(String key){
        try {
            return key==null?false:redisTemplate.hasKey(key);
        }catch (Exception e){
            log.error("redis hasKey error, key: {}", key);
            return false;
        }
    }
    public boolean set(String key, String value,long timeout){
        try {
            if(timeout>0){
                redisTemplate.opsForValue().set(key, value, timeout, TimeUnit.SECONDS);
            }
            redisTemplate.opsForValue().set(key, value);
            return true;
        }catch (Exception e){
            log.error("redis set error, key: {}, value: {}", key, value);
            return false;
        }
    }

    public String buildKey(String prefix, String... args) {
        if(prefix==null){
            prefix = REDIS_DEFAULT;
        }
        StringBuilder key = new StringBuilder();
        key.append(prefix);
        if(args!=null){
            for(String arg:args){
                key.append(REDIS_SPLIT).append(arg);
            }
        }
        return key.toString();
    }
}
